Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

TANYA A WAHL M.D.
NPI 1326052671
Internal Medicine - Medical Oncology in Issaquah, WA

Active since July 29, 2006PECOS EnrolledAccepts Medicare Assignment
82.84/100
CMS Quality Rating
751 NE BLAKELY DR STE 2030, ISSAQUAH, WA 98029(425) 313-4200(425) 313-4201 Get Directions Write a Review

NPPES record last updated: July 7, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jul 7, 2026, Apr 28, 2021 (2 updates tracked since 2021).

About Tanya A Wahl M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

TANYA A WAHL M.D. (NPI 1326052671) is an individual medical oncology provider in Issaquah, Washington, licensed in Washington (MD00039965) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS, is affiliated with Swedish Medical Center, and maintains a secondary practice location in Friday Harbor.

NPPES Registry Identity

NPI1326052671
Entity TypeIndividualFemale
Primary Taxonomy207RX0202X
Provider Legal NameTANYA A WAHLCredential: M.D.
Location Address751 NE BLAKELY DR STE 2030Issaquah, WA 98029-6201
Mailing AddressPo Box 25608Salt Lake City, UT 84125-0608 · (206) 320-4476 · Fax (206) 568-7043
Fax(425) 313-4201
Sole ProprietorNo
Medical School CMSDuke University School Of MedicineGraduated 1997
Enumeration DateJuly 29, 2006
Last NPPES UpdateJuly 7, 20262 updates tracked since enumeration
NPPES CertifiedJuly 7, 2026
NPI 1326052671 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · Medical OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RX0202X
License Licensed in WA · MD00039965
Definition

An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.

751 NE BLAKELY DR STE 2030, Issaquah, WA 98029

Secondary Practice Location 1

Location 11117 Spring StFriday Harbor, WA 98250-9782 · Phone (360) 378-1738 · Fax (360) 378-1784

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Tanya A Wahl M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3072695535
PECOS Enrollment IDI20100219000336
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
229 services91 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
179 services117 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
114 services89 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
35 services35 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
11 services11 patients

Hospital Affiliations CMS Care Compare 4

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Swedish Medical Center

Acute Care Hospitals · Seattle, WA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number500027
Location747 BroadwaySeattle, WA 98122 · King County
Emergency services Birthing friendly

Overlake Hospital Medical Center

Acute Care Hospitals · Bellevue, WA
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number500051
Location1035-116th Ave NEBellevue, WA 98004 · King County
Emergency services Birthing friendly

Evergreenhealth Medical Center

Acute Care Hospitals · Kirkland, WA
5/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number500124
Location12040 NE 128th StreetKirkland, WA 98034 · King County
Emergency services Birthing friendly

Swedish Issaquah

Acute Care Hospitals · Issaquah, WA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number500152
Location751 NE Blakely DrIssaquah, WA 98029 · King County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98029 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$189.37 typical visit price
range $63.67 – $189.37
Typical copayment $47.34 (range $15.91 – $47.34)
Most-billed visit code 99205
Established Patient
$111.00 typical visit price
range $21.12 – $155.00
Typical copayment $27.75 (range $5.28 – $38.75)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

82.84/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality82.14
Promoting Interoperability100
Improvement Activities40
Cost60.65

Referred Medical Equipment & Supplies CMS DME claims 7

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Enteral feeding supply kit; syringe fed, per day, includes but not limited to feeding/flushing syringe, administration set tubing, dressings, tape B4034
Other-Enteral and Parenteral · category OB006N
1 supplier12 claims340 services$2.60 avg. paid by Medicare
Enteral formula, nutritionally complete, calorically dense (equal to or greater than 1.5 kcal/ml) with intact nutrients, includes proteins, fats, carbohydrates, vitamins and minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit B4152
Other-Enteral and Parenteral · category OB006N
1 supplier12 claims7,704 services$0.25 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
3 suppliers18 claims18 services$76.81 avg. paid by Medicare
Capecitabine, oral, 150 mg J8520
Treatment-Treatment - Miscellaneous · category RX029N
1 supplier16 claims784 services$0.34 avg. paid by Medicare
Capecitabine, oral, 500 mg J8521
Treatment-Treatment - Miscellaneous · category RX029N
1 supplier29 claims2,572 services$0.70 avg. paid by Medicare
Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for the first prescription in a 30-day period Q0511
Treatment-Chemotherapy · category RH012N
1 supplier16 claims16 services$19.02 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Obstetrics & Gynecology
751 NE BLAKELY DR STE 2030
ISSAQUAH, WA 98029
Nurse Practitioner (Obstetrics & Gynecology)
751 NE BLAKELY DR STE 2030
ISSAQUAH, WA 98029
Nurse Practitioner (Obstetrics & Gynecology)
751 NE BLAKELY DR STE 2030, SUITE 2030
ISSAQUAH, WA 98029
Obstetrics & Gynecology
751 NE BLAKELY DR STE 2030
ISSAQUAH, WA 98029
Physician Assistant
751 NE BLAKELY DR STE 2030
ISSAQUAH, WA 98029
Obstetrics & Gynecology
751 NE BLAKELY DR STE 2030
ISSAQUAH, WA 98029
Obstetrics & Gynecology
751 NE BLAKELY DR STE 2030
ISSAQUAH, WA 98029
Advanced Practice Midwife
751 NE BLAKELY DR STE 2030
ISSAQUAH, WA 98029

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Tanya Wahl's NPI number?

The NPI number for Tanya Wahl is 1326052671. It was assigned to this individual provider in the NPPES registry on July 29, 2006.

Where is Tanya Wahl located?

Tanya Wahl practices at 751 NE Blakely Dr Ste 2030, Issaquah, WA 98029. The listed phone number is (425) 313-4200.

What is Tanya Wahl's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

Is Tanya Wahl enrolled in Medicare?

Yes. Tanya Wahl is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Tanya Wahl accept?

Health plans from PacificSource Health Plans, Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Tanya Wahl as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Tanya Wahl affiliated with any hospitals?

According to CMS data, Tanya Wahl is affiliated with Swedish Medical Center, Overlake Hospital Medical Center, Evergreenhealth Medical Center and Swedish Issaquah.

When was this NPI record last updated?

The NPPES record for Tanya Wahl was last updated on July 7, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.